Nut.



A. T. CRANE.

NUT.

APPLIOATION TILED APB.9,1914.2

1,106,082. Patented Aug. 4,1914

UNITE STATES PATENT oFFIoE.

ARTHUR T. CRANE, OF WATERBUBY, CONNECTICUT, ASSIQNOR TO WATERB URY MFG.

00., OF WATERBURY, CONNECTICUT, A CORPORATION.

NUT.

To all whom it may concern:

Be it known that I, ARTHUR T. CRANE, a citizen of the United States,residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented a new and useful Improvement in Nuts; and Ido hereby declare the following, when taken in connection with theaccompanying drawings and the characters of reference marked thereon, tobe a full,clear, and exact description of the same, and which saiddrawings constitute part of this application, and represent, in

Figure 1 a side view of a nut constructed in accordance with myinvention andshown as applied to a battery screw. Figs. 2 to 9 inclusiveshow the various steps employed in the roduction of my improved nut.

This mvention relates to an improvement in nuts, and particularly nutsespecially designed to be used in electrical work on batteries, bellsand other points where a wire is to be connected. These nuts whichcomprise a head and a flaring base, are usually turned from a rod andwhen so made are frequently cut off from the bar stock in such a manneras to leave a bur at the edge of the hole at the top of the nut causingthe nut to bindon the screw when assembled.

The object of this invention is to construct tion' consists in theconstruction hereinafter nuts comprise a head 2 and a flaring baseSpecification of Letters Patent.

Patented Aug. 4, 1914.

Application filed April 9, 1914. Serial No. 830,688.

The flange 5 of the cup is then rolled over as shown in Fig. 5 to form ahead 2 and the edge of this head is knurled or otherwlse faced so as tobe readily turned by the finger or by a wrench. The bottom of the cup isthen c t away leaving a lon shank 6 as shown in Fig. 7, and this shankis then flared to form a hollow base 3 as shown in Fig. 8, and theinterior walls of the shank are then threaded as shown in Fig. 9. I thusform a nut particularly adapted for electric use from sheet metal andfurnish the usual head and flaring base, which, bein recessed, willaccommodate the coil of wire around the screw and hold the same in placethus insuring electrical connection.

I claim A nut formed from sheet metal and comprisin a tubular shankprovided at one end with a reversely turned flanged head and at theopposite end with a flaring base.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

ARTHUR T. CRANE.

Witnesses J. S. Nmonn, K. M. 'Baow v.

